Joseph sudee



'(NoModeL) J. SUDER. Photographic Camera.

Patented Jan. 25

17V YEN TOR WITNESSES N.FETE:1=. PHOTO-LITHOGRAPNER, WASHINGTON, D C.

UNITED STATES PATENT OFFICE.

JOSEPH SUDER, OF TRENTON, NEW JERSEY.

PHOTOGRAPHIC CAMERA.

SPECIFICATION forming part of Letters Patent No. 236,916, dated January25, 1881.

Application filed May 18, 1880.

To all whom it may concern Be it known that I, J OSEPH SUDER, of thecity of Trenton, State of New Jersey, have invented a new and usefulImprovement in Photographic Cameras, of which the following is aspecification.

My invention relates to improvements in photographic cameras in which,by means of an inside shutter, placed at the inside end of the tubecontaining the lenses, the image of the sitter in front of the cameracan be shut off from the sensitized plate within the plateholder of thecamera-box, without the use of any outer cap to such tube, until thesitter is placed in a correct position, and then, by the operation ofmachinery so arranged and constructed as to work noiselessly and withease, the shutter can be raised by the operator without the knowledge ofthe person sitting for a portrait, and without in the least degreedisturbing the perfect rest of the camera-box, and held in positionuntil the exposure of the plate is completed.

In all appliances heretofore used for allowing the exposure of the plateto the image of the sitter the means used to effect such exposure havebeen visible to the sitter, frequently causing, at the moment ofexposure and during its continuance, nervous starts or restlessness onthe part of the sitter, or have been so devised as to be incapable ofoperation without jarring and disturbing that perfect motionlessness ofthe camera requisite to produce a sharp and clear impression upon theplate. These objections are overcome by the mechanism and processes Iemploy, and which mechanism is shown in the accompanying drawings.

In these drawings, in which similar letters of reference representsimilar parts, Figure 1 represents an inside view of the tube end of thecamera-box, showing the shutter down over the mouth of the tube, and afront view of the machinery arranged within the camerabox to raise theshutter, the front of the box 0 being removed to allow the machinerywithin the box to be seen. Fig. 2 represents the lens-tube with asection of the tube end of the camera-box and a side view (exposed byremoval of one side of the box 0) of the machinery for raising theshutter.

(No model.)

In Fig. l the space A within the dotted circular line represents the endof the lens-tube.

13 represents the shutter fastened to a shaft, BC. Upon this shaft is asmall wheel or pulley, B fixed rigidly to the shaft.

Within an oblong box, 0, is placed a ball or bulb, D, of thinindia-rubber or other flexible substance. This bulb is partly filledwith air. Upon the top of this bulb rests a bar, E. Near the top of thisbar is attached a cord, E, which passes around the pulley B and isfastened to the bar E, near the lower end of the bar.

To the bulb D is attached a small flexible tube, E. This tube passes outof the box 0 through the tube endI of the camera-box, and is of anydesired length. In Fig. 2 this tube is shown with a break at K. Thisbreak simply represents the indefinite length to which the tube H may beextended.

At the end of the tube His another flexible bulb, L. (Shown in Fig. 2.)To the neck L of this bulb L are attached, byhinges, two clamps, M M,the outer ends of which, by means of a spring, N, are pressed againstthe tube H, preventing the passage of air through the tube H during suchpressure.

The box 0 is held in position by the feet F F. These feet, being made ofthin metal, can be fixed at any angle, and thus allow the box to beplaced nearer to or farther from the tube end I of the camera-box.

The sitter being placed in position before the camera, the operator,standing in any part of the room, takes the bulb L in his hand, presseswith his fingers and hand upon the bulb and clamps, compressing the bulband raising the clamps. The air, being expelled by such compression fromthe bulb L, passes through the tube H, enters the bulb D, fills it, thusraising its sunken upper end. This end, in rising, carries with it thebar E and cord E. The pulley B and shaft B are partly rotated, and theshutter 13 is raised from the front of the tube, allowing the rays oflight from the lenses in the tube to pass within the camera-box, and theimage of the sitter is projected upon the plate. The shutter beingraised,the operator, byreleasing the pressure from the clamps M M,allows them to press the tube H, closing it, and preventing the returnof the air, thus holding the shutter in a raised position until theexposure of the plate is ended; then, by pressing the clamp, the tube His opened, a portion of the air passes 5 out of the bulb D, through thetube H, to the bulb L, the upper end of the bulb D sinks, by the weightof the bar E, and the shutter closes against the end of the lens-tube.The bulbs and the tube H, being all connected by airtight couplings, andbeing constructed of india-rubber or other flexible and air-tightmaterial, the slightest pressure upon one bulb will send the air out ofthe bulb into and fill the other bulb. What I claim as my invention, anddesire to secure by Letters Patent, is

1. The bulb L, in combination with the tube H, bulb D, bar E, cord E,pulley B shaft B, and shutter B, all substantially as shown, and for thepurposes set forth.

2. In a photographic camera, the-shutter B, shaft B, and pulley B, incombination with the bar E and cord E, substantially as shown, and forthepurpose set forth.

3. In a photographic camera, the shutter B, 2 5 shaft B, pulley B bar E,and cord E, in combination with the bulb D, substantially as shown, andfor the purpose set forth.

4. In a photographic camera, the bulb L, in combination with the clampsM M and tube H, substantially as shown, and for the purpose set forth.

5. The bulb L, in combination with the clamps M M, with spring N, andtube H, substantially as shown, and for the purpose set 3 5 forth.

JOSEPH SUDER. Witnesses:

BENJ. R. WHITE, SAMUEL WALKER, Jr.

